--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/windowing/windowserverplugins/openwfc/inc/openwfcwrapper.h	Tue Feb 02 01:47:50 2010 +0200
@@ -0,0 +1,205 @@
+// Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of "Eclipse Public License v1.0"
+// which accompanies this distribution, and is available
+// at the URL "http://www.eclipse.org/legal/epl-v10.html".
+//
+// Initial Contributors:
+// Nokia Corporation - initial contribution.
+//
+// Contributors:
+//
+// Description:
+//
+
+#ifndef OPENWFCWRAPPER_H_
+#define OPENWFCWRAPPER_H_
+
+#include <babitflags.h>
+#include <graphics/wsscene.h>
+#include <babitflags.h>
+#include <graphics/surface.h>
+#include "displaypolicy.h"
+
+//
+//OpenWFC stuff
+
+#include <e32std.h>
+#include <e32base.h>
+#include <e32hashtab.h>     //for RHashMap
+#include <WF/wfc.h>
+#include <EGL/egl.h>
+#include <graphics/surfacemanager.h>
+#include <graphics/wsdisplaycontrol.h>
+
+//
+
+class COpenWfcJobManger;
+
+class TDisplayConfiguration;
+class CElementWrapper;
+
+class COpenWfcWrapper : public CBase, public MWsDisplayControl
+	{
+friend class CStdRenderStage;
+friend class CElementWrapper;
+
+public:
+	static COpenWfcWrapper* NewL(TInt aScreenNo, CDisplayPolicy* aDisplayPolicy);
+	TInt SetUiSurface(const TSurfaceId& aNewUiSurface);
+	~COpenWfcWrapper();
+	
+	MWsElement* CreateElementL();
+	void DestroyElement(MWsElement* aElement);
+	void Compose(const TSurfaceId& aOffScreenTarget, const TPoint& aOrigin,
+	             MWsElement* aStart, MWsElement* aEnd, TRequestStatus* aCompleted);
+	TInt AddElement(MWsElement* aElement, MWsElement* aAbove);
+	void RemoveElement(MWsElement* aElement);
+	void PauseCompositorIfNeeded();
+	void ResumeCompositorIfPaused();
+	void SetScreenRotation(MWsScene::TSceneRotation aRotation);
+	MWsScene::TSceneRotation ScreenRotation() const;
+	TSize ScreenSize() const;
+	void Begin(const TRegion* aRegion);
+	void End();	
+	TBool CompositionDue ();
+	void Compose(TRequestStatus* aCompleted);
+	TInt FlushedSetConfiguration(const TDisplayConfiguration& aConfig);
+    TBool WithinBeginEnd() { return iWithinBeginEnd; };
+	CDisplayPolicy* DisplayPolicy();
+    void FlushSceneElementChanges ();
+    void RemoveElementFromSceneList(CElementWrapper* aElement);
+	
+    /*-------------------------------------------------------------------*//*
+     * CBase interface implementation functions
+     *//*-------------------------------------------------------------------*/
+    //Standard symbian interface extension mechanism
+    virtual TInt        Extension_              (TUint aExtensionId, TAny*& a0, TAny* a1);
+
+    enum    TInternalExtensionGuids
+        {   //These debug object interfaces need not be supported at runtime or on all platforms
+        EExtensionDebugBackendGuid  =   0x1028589A,
+        EExtensionDebugContextGuid  =   0x1028589B,
+        EExtensionDebugDeviceGuid   =   0x1028589C,
+        EExtensionDebugElementGuid  =   0x1028589D,
+        EExtensionDebugSourceGuid   =   0x1028589E, //F still spare when this was written...
+        };
+    
+    /**    Get Extension Interface.
+     *  Implemented using the CBase::Extension_() mechanism 
+     *  @param  aExtensionId    The GUID/ Well-known ID of the interface
+     *  @return pointer to the interface or NULL if not available
+     **/
+    inline TAny* GetInterface(TUint aExtensionId);
+
+    /** Get Extension Interface - templated helper.
+     *  Resolves the ID and returned pointer based on the class name.
+     *  Class name should support ETypeId intergral value, else use non-template version. 
+     *  @param  MClass  The class of the interface with embedded GUID / Well known ID 
+     *  @return pointer to the interface or NULL if not available
+     **/
+    template <class MClass> MClass* GetInterface()
+    {
+        return static_cast<MClass*>(GetInterface(MClass::ETypeId));
+    }
+    
+    TInt RegisterSurface(const TSurfaceId& aSurface);
+    TInt UnregisterSurface(const TSurfaceId& aSurface);
+    void Compose(const TSurfaceId& aOffScreenTarget, TRequestStatus* aCompleted);
+    virtual TBitFlags32 SupportedScreenRotations() const;
+    void PauseComposition();
+    void ResumeComposition ();
+	/*-------------------------------------------------------------------*//*
+	* MWsDisplayControl/MDisplayControlBase interface implementation functions
+	*//*-------------------------------------------------------------------*/
+
+    virtual TInt NumberOfResolutions()const ;
+    virtual TInt GetResolutions(RArray<TResolution>& aResolutions)const ;
+    virtual void GetConfiguration(TDisplayConfiguration& aConfig)const ;
+    virtual TInt SetConfiguration(const TDisplayConfiguration& aConfig) ;
+    virtual TInt PreferredDisplayVersion()const ;
+
+    virtual void NotifyOnDisplayChange(TRequestStatus& aStatus);
+    virtual void NotifyOnDisplayChangeCancel();
+    virtual void NotifyOnConfigChange(TRequestStatus& aStatus);
+    virtual void NotifyOnConfigChangeCancel();
+
+    //"secret" methods available to element
+    WFCDevice Device(){return iDevice;}
+    WFCContext OnScreenContext()   {return iOnScreenContext;}
+    WFCSource IncEltRefRegSource(const TSurfaceId& aHashKey); //<@return registered source handle or NULL if not registered
+    TInt DecEltRefRegSource(const TSurfaceId& aHashKey); //<@return 0=destroyed, +ve count left, -ve error
+
+    static TInt TranslateOpenWfcError(WFCErrorCode error);
+    static void DestroyAllContextElements(WFCDevice dev, WFCContext ctx);
+    RSurfaceManager& SurfaceManager(){return iSurfaceManager;}
+    EGLDisplay Display(){return iEGLDisplay;}
+    
+private:
+    COpenWfcWrapper(CDisplayPolicy* aDisplayPolicy);
+	void ConstructL(TInt aScreenId);
+	TInt AttachSurfaceToUiElement(CElementWrapper* aNewUiElement);
+	void SetCompositionModified();
+	
+    static TUint32 HashFunction(const TSurfaceId& aHashKey);
+    void  ComposeInternal(const TSurfaceId&  aOffScreenTarget,
+                                 const TPoint&      aOrigin,
+                                 MWsElement*      aStart,
+                                 MWsElement*      aEnd,
+                                 TRequestStatus*    aCompleted);
+    TBool IsValidSurface(const TSurfaceId& aSurface);
+
+private:
+	TBool iPaused;
+	TBool iWithinBeginEnd;
+	TBool iCompositionModified;
+	TBool iAllowCompositorPause;
+	
+	CElementWrapper* iUiElement1;
+	CElementWrapper* iUiElement2;
+	
+	TSurfaceId iUiSurface;
+	CDisplayPolicy* iDisplayPolicy;
+	
+private:
+    class OffScreenComposeGuard;
+    
+    struct SourceAndRef
+        {
+        WFCSource source;
+        TInt sourceRef;
+        TInt elementRef;
+        };
+    RHashMap<TSurfaceId, SourceAndRef> iSourceMap;
+    
+    WFCDevice iDevice;
+    WFCContext iOnScreenContext;
+    EGLDisplay iEGLDisplay;
+    WFCint iScreenNumber;
+    static const TInt iInitialSourceMapSize = 0x0;
+    CElementWrapper* iSceneElementList;      //all elements visible in the scene hierarchy
+    CElementWrapper* iRemoveElementList;     //all elements removed from the scene hierarchy
+    CElementWrapper* iCleanupElementList;    //all elements currently allocated are destroyed on cleanup
+    COpenWfcJobManger* iJobManager;
+    MWsScene::TSceneRotation iRotation;
+    TBool iAutonomousCompositionInitiated;
+    MDisplayControlBase* iContextDisplayControl;
+    RSurfaceManager iSurfaceManager;
+	};
+
+inline TAny* COpenWfcWrapper::GetInterface(TUint aExtensionId)
+    {
+    TAny*   retVal=NULL;
+    //Note that extension is intentionally not overloaded in CCompositionBackend
+    if (this->Extension_(aExtensionId,retVal,NULL)<KErrNone)
+        {
+        return NULL;
+        }
+    else
+        {
+        return retVal;
+        }
+    }
+
+#endif /*OPENWFCWRAPPER_H_*/